System and method for controlling actuation of a well component
AssigneeSchlumberger Technology Corporation
InventorsZheng R. Xu, William D. Eatwell
Life of this patent
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Abstract
A technique is provided for controlling actuation of a well component. A resistance device is deployed in a tool string and connected to a well tool to be actuated. The resistance device comprises a deformable body and a deforming member that move relative to one another during actuation of the well tool. Deformation of the deforming member provides constant resistance and consequent control over component actuation.
Claims23
A method of providing a constant resistance in a wellbore, comprising:
- coupling a deformable body with a deforming member;
- pre-work hardening the deformable body prior to use in the wellbore by applying an axial load to the deformable body by assembling the deformable body and the deforming member into a well tool string under the axial load;
- connecting the deformable body and the deforming member to components of the well tool string;
- and
- actuating a well component by providing a constant resistance to the actuation of the well component of the well tool string via movement of the deforming member over a distance along the deformable body.
A system for use in a wellbore, comprising:
- a well tool actuated upon application of a sufficient force over a distance;
- and
- a resistance device coupled to the well tool to provide a resistance to the force along the distance, the resistance device comprising a deformable body, subjected to pre-work hardening prior to use in the wellbore, and a deforming member positioned to deform the deformable body as the well tool is actuated, wherein the resistance device is coupled to the well tool while preloaded.
A method of providing a constant resistance in a wellbore, comprising:
- coupling a deformable body with a deforming member;
- connecting the deformable body and the deforming member to components of a well tool string;
- actuating a well component by moving the deforming member along the deformable body by providing a constant resistance to the actuation of the well component of the well tool string;
- and
- maintaining deformation of the deformable body within its elastic limits as the deforming member moves along the deformable body.
A system for use in a wellbore, comprising:
- a well tool actuated upon application of a sufficient force applied over a distance;
- and
- a resistance device coupled to the well tool to provide a constant resistance to the force along the distance, the resistance device comprising a deformable body subjected to pre-work hardening prior to use in the wellbore and a deforming member sized to deform the deformable body within its elastic limits as the well tool is actuated.
Dependencies are inferred from the claim text.